package com.yang.base;

public class Demo05 {
    public static void main(String[] args) {
        //操作比较大的数的时候，注意溢出问题
        int money = 10_0000_0000;
        System.out.println(money);
        int years = 20;
        int total = money * years;//-1474836480,计算时溢出了
        long total2 = money * years;//默认是int，转换之前已经存在问题了？

        long total3 = money * ((long)years);
        System.out.println(total3);



    }
}
